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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Milk is 15% ________ and 85% __________.






2. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






3. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






4. Urinary calculi.






5. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






6. FEED






7. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






8. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






9. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






10. Allows extension of penis without fibro-elastic penis






11. (male) pushes the testes upward toward the body for warmth or protection






12. 19-23 (21) days






13. 114 days






14. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






15. Depository for semen during insemination. where urine leaves the body






16. Sperm is produced here






17. Superior genes are _______ to multiply






18. To remove/separate testicles from animal's body before animal reaches puberty






19. 16-20 hours






20. 10-37 (21) days






21. Important 'landmark' during palpation






22. Failure to have both testis (gonads) descend






23. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






24. 1-2 days






25. 16-20 hours






26. 336 days






27. To remove/separate testicles from animal's body before animal reaches puberty






28. Days which have decreasing daylight hours

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29. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






30. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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31. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






32. Prevent the cow from getting an infection from the calve






33. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






34. Why does estrus happen before ovulation?






35. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






36. (male) pushes the testes upward toward the body for warmth or protection






37. Important 'landmark' during palpation






38. Duct through penis that carries sperm and urine






39. 19-23 (21) days






40. Milk is 15% ________ and 85% __________.






41. Birthing process (termination of gestation)






42. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






43. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






44. 1-2 days






45. 283 days






46. Larger the cow - more milk is produced; smaller the cow - less milk is produced






47. Superior genes are _______ to multiply






48. Front feet and head first. (except for hogs and dogs)






49. 4-6 days






50. Not under a timeline - cow can not be sold as steak